| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

*

* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

*

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

*

* For more information, contact:

*

*  Generalitat Valenciana

*   Conselleria d'Infraestructures i Transport

*   Av. Blasco Ib??ez, 50

*   46010 VALENCIA

*   SPAIN

*

*      +34 963862235

*   gvsig@gva.es

*      www.gvsig.gva.es

*

*    or

*

*   IVER T.I. S.A

*   Salamanca 50

*   46005 Valencia

*   Spain

*

*   +34 963163400

*   dac@iver.es

*/

package org.gvsig.app.project.documents.view.toolListeners;

import java.awt.geom.Point2D;

import org.gvsig.andami.PluginServices;

import org.gvsig.fmap.dal.exception.ReadException;

import org.gvsig.fmap.geom.primitive.Envelope;

import org.gvsig.fmap.mapcontext.ViewPort;

import org.gvsig.fmap.mapcontext.layers.FLayer;

import org.gvsig.fmap.mapcontext.layers.FLayers;

import org.gvsig.fmap.mapcontrol.MapControl;

import org.gvsig.fmap.mapcontrol.tools.SelectImageListenerImpl;

import org.gvsig.fmap.mapcontrol.tools.Events.PointEvent;

/**

 * <p>Listener to select the upper layer with raster data that has information in the associated <code>MapControl</code> object, down

 *  the position selected by a single click of any button of the mouse.</p>

 *

 * <p>The layer selected will be set as <i>active</i>, and the available controls for managing the data will be updated, enabling and

 *  disabling the necessary.</p>

 *

 * <p>The status of the other layers will be changed to <i>not active</i>.</p>

 *

 * @deprecated

 * @author Nacho Brodin <brodin_ign@gva.es>

 * 

 * FIXME: Si esta deprecated deberiamos indicar que hemos de usar en su lugar.

 * 

 */

public class SelectImageListener extends SelectImageListenerImpl {

        //FLyrRaster                         layer = null;

        /**

         * Extent of the layer selected.

         */

        Envelope extentLayer = null;

        /**

         * <p>Creates a new <code>SelectImageListener</code> object.</p>

         *

         * @param mapCtrl the <code>MapControl</code> where are stored the layers

         */

        public SelectImageListener(MapControl mapCtrl) {

                super(mapCtrl);

        }

        /*

         *  (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.tools.Listeners.PointListener#point(com.iver.cit.gvsig.fmap.tools.Events.PointEvent)

         */

        public void point(PointEvent event) {

                super.point(event);

                Point2D pointSelect = event.getPoint();

                if (PluginServices.getMainFrame() != null) {

                        PluginServices.getMainFrame().enableControls();

                }

                ViewPort vp = mapCtrl.getMapContext().getViewPort();

                wcPoint = vp.toMapPoint((int)pointSelect.getX(), (int)pointSelect.getY());

                FLayers layers = mapCtrl.getMapContext().getLayers();

                for(int i=0;i<layers.getLayersCount();i++) {

                        layers.getLayer(i).setActive(false);

                }

                for(int i=layers.getLayersCount()-1;i>=0;i--){

                        if (select(layers.getLayer(i))) {

                                break;

                        }

                }

        }

        /**

         * Determines if the <code>layer</code> is selected at a position starting by the end.

         *

         * @param layer kind of layer

         * @param pos number of positions starting by the end

         *

         * @return <code>true</code> if the <code>layer</code> is selected at a position starting by the end, otherwise <code>false</code>

         */

        private boolean select(FLayer layer){

                if (layer instanceof FLayers){

                        FLayers laux=(FLayers)layer;

                        for (int j=laux.getLayersCount()-1;j>=0;j--){

                                if (select(laux.getLayer(j))){

                                        return true;

                                }

                        }

                }else{

                        try{

                                extentLayer = layer.getFullEnvelope();

                        }catch(ReadException exc){

                                exc.printStackTrace();

                        }

                }

                return false;

        }

}